Region
Colorado
95
United States
95
California
4
Oregon
4
Denver
3
Oregon, Western
3
Guam
2
Middle West
2
Nevada
2
Alaska
1
Arctic regions
1
Arizona
1
Arizona Strip (Ariz.)
1
Bahamas
1
Boulder
1
Casper Region
1
Catron County
1
Central America
1
Chesapeake Bay (Md. and Va.)
1
Chesapeake Bay Watershed
1
Cuba
1
Douglas County
1
Florida
1
Foreign countries
1
Fort Collins
1
Grand Canyon-Parashant National Monument (Ariz.)
1
Gullah Geechee Cultural Heritage Corridor
1
Jackson County
1
Josephine County
1
Lane County
1
Los Angeles
1
Maine
1
Massachusetts
1
Mississippi River Watershed
1
New Mexico
1
New York (State)
1
Northwest, Pacific
1
Olympic National Park (Wash.)
1
Outer space
1
Sacramento National Wildlife Refuge (Calif.)
1
Sacramento River
1
Sacramento Valley
1
Socorro County
1
Southern States
1
Utah
1
Washington (State)
1
Willamette River Valley
1
Wyoming
1